1 | # is-accessor-descriptor [![NPM version](https://img.shields.io/npm/v/is-accessor-descriptor.svg?style=flat)](https://www.npmjs.com/package/is-accessor-descriptor) [![NPM monthly downloads](https://img.shields.io/npm/dm/is-accessor-descriptor.svg?style=flat)](https://npmjs.org/package/is-accessor-descriptor) [![NPM total downloads](https://img.shields.io/npm/dt/is-accessor-descriptor.svg?style=flat)](https://npmjs.org/package/is-accessor-descriptor) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/is-accessor-descriptor.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/is-accessor-descriptor)
|
---|
2 |
|
---|
3 | > Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.
|
---|
4 |
|
---|
5 | Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
|
---|
6 |
|
---|
7 | ## Install
|
---|
8 |
|
---|
9 | Install with [npm](https://www.npmjs.com/):
|
---|
10 |
|
---|
11 | ```sh
|
---|
12 | $ npm install --save is-accessor-descriptor
|
---|
13 | ```
|
---|
14 |
|
---|
15 | ## Usage
|
---|
16 |
|
---|
17 | ```js
|
---|
18 | var isAccessor = require('is-accessor-descriptor');
|
---|
19 |
|
---|
20 | isAccessor({get: function() {}});
|
---|
21 | //=> true
|
---|
22 | ```
|
---|
23 |
|
---|
24 | You may also pass an object and property name to check if the property is an accessor:
|
---|
25 |
|
---|
26 | ```js
|
---|
27 | isAccessor(foo, 'bar');
|
---|
28 | ```
|
---|
29 |
|
---|
30 | ## Examples
|
---|
31 |
|
---|
32 | `false` when not an object
|
---|
33 |
|
---|
34 | ```js
|
---|
35 | isAccessor('a')
|
---|
36 | isAccessor(null)
|
---|
37 | isAccessor([])
|
---|
38 | //=> false
|
---|
39 | ```
|
---|
40 |
|
---|
41 | `true` when the object has valid properties
|
---|
42 |
|
---|
43 | and the properties all have the correct JavaScript types:
|
---|
44 |
|
---|
45 | ```js
|
---|
46 | isAccessor({get: noop, set: noop})
|
---|
47 | isAccessor({get: noop})
|
---|
48 | isAccessor({set: noop})
|
---|
49 | //=> true
|
---|
50 | ```
|
---|
51 |
|
---|
52 | `false` when the object has invalid properties
|
---|
53 |
|
---|
54 | ```js
|
---|
55 | isAccessor({get: noop, set: noop, bar: 'baz'})
|
---|
56 | isAccessor({get: noop, writable: true})
|
---|
57 | isAccessor({get: noop, value: true})
|
---|
58 | //=> false
|
---|
59 | ```
|
---|
60 |
|
---|
61 | `false` when an accessor is not a function
|
---|
62 |
|
---|
63 | ```js
|
---|
64 | isAccessor({get: noop, set: 'baz'})
|
---|
65 | isAccessor({get: 'foo', set: noop})
|
---|
66 | isAccessor({get: 'foo', bar: 'baz'})
|
---|
67 | isAccessor({get: 'foo', set: 'baz'})
|
---|
68 | //=> false
|
---|
69 | ```
|
---|
70 |
|
---|
71 | `false` when a value is not the correct type
|
---|
72 |
|
---|
73 | ```js
|
---|
74 | isAccessor({get: noop, set: noop, enumerable: 'foo'})
|
---|
75 | isAccessor({set: noop, configurable: 'foo'})
|
---|
76 | isAccessor({get: noop, configurable: 'foo'})
|
---|
77 | //=> false
|
---|
78 | ```
|
---|
79 |
|
---|
80 | ## About
|
---|
81 |
|
---|
82 | <details>
|
---|
83 | <summary><strong>Contributing</strong></summary>
|
---|
84 |
|
---|
85 | Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
|
---|
86 |
|
---|
87 | </details>
|
---|
88 |
|
---|
89 | <details>
|
---|
90 | <summary><strong>Running Tests</strong></summary>
|
---|
91 |
|
---|
92 | Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
|
---|
93 |
|
---|
94 | ```sh
|
---|
95 | $ npm install && npm test
|
---|
96 | ```
|
---|
97 |
|
---|
98 | </details>
|
---|
99 |
|
---|
100 | <details>
|
---|
101 | <summary><strong>Building docs</strong></summary>
|
---|
102 |
|
---|
103 | _(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
|
---|
104 |
|
---|
105 | To generate the readme, run the following command:
|
---|
106 |
|
---|
107 | ```sh
|
---|
108 | $ npm install -g verbose/verb#dev verb-generate-readme && verb
|
---|
109 | ```
|
---|
110 |
|
---|
111 | </details>
|
---|
112 |
|
---|
113 | ### Related projects
|
---|
114 |
|
---|
115 | You might also be interested in these projects:
|
---|
116 |
|
---|
117 | * [is-accessor-descriptor](https://www.npmjs.com/package/is-accessor-descriptor): Returns true if a value has the characteristics of a valid JavaScript accessor descriptor. | [homepage](https://github.com/jonschlinkert/is-accessor-descriptor "Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.")
|
---|
118 | * [is-data-descriptor](https://www.npmjs.com/package/is-data-descriptor): Returns true if a value has the characteristics of a valid JavaScript data descriptor. | [homepage](https://github.com/jonschlinkert/is-data-descriptor "Returns true if a value has the characteristics of a valid JavaScript data descriptor.")
|
---|
119 | * [is-descriptor](https://www.npmjs.com/package/is-descriptor): Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for… [more](https://github.com/jonschlinkert/is-descriptor) | [homepage](https://github.com/jonschlinkert/is-descriptor "Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.")
|
---|
120 | * [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object "Returns true if an object was created by the `Object` constructor.")
|
---|
121 | * [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject "Returns true if the value is an object and not an array or null.")
|
---|
122 |
|
---|
123 | ### Contributors
|
---|
124 |
|
---|
125 | | **Commits** | **Contributor** |
|
---|
126 | | --- | --- |
|
---|
127 | | 22 | [jonschlinkert](https://github.com/jonschlinkert) |
|
---|
128 | | 2 | [realityking](https://github.com/realityking) |
|
---|
129 |
|
---|
130 | ### Author
|
---|
131 |
|
---|
132 | **Jon Schlinkert**
|
---|
133 |
|
---|
134 | * [github/jonschlinkert](https://github.com/jonschlinkert)
|
---|
135 | * [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
|
---|
136 |
|
---|
137 | ### License
|
---|
138 |
|
---|
139 | Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
|
---|
140 | Released under the [MIT License](LICENSE).
|
---|
141 |
|
---|
142 | ***
|
---|
143 |
|
---|
144 | _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on November 01, 2017._ |
---|